4.2x=3(1.8x+12.8)

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Solution for 4.2x=3(1.8x+12.8) equation: 



4.2x=3(1.8x+12.8)

We move all terms to the left:

4.2x-(3(1.8x+12.8))=0



We calculate terms in parentheses: -(3(1.8x+12.8)), so:

3(1.8x+12.8)

We multiply parentheses

3x+38.4

Back to the equation:

-(3x+38.4)



We get rid of parentheses

4.2x-3x-38.4=0

We add all the numbers together, and all the variables

1.2x-38.4=0

We move all terms containing x to the left, all other terms to the right

1.2x=38.4

x=38.4/1.2

x=32

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